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| author | Jens Axboe <jens.axboe@oracle.com> | 2008-09-16 09:54:11 -0700 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-10-09 08:56:17 +0200 |
| commit | 7ba1fbaa4a478f72fbaf5a56af9c82a77966b4c7 (patch) | |
| tree | 275c1d86386d7db9fa75840363230098ca6bddd3 /block/blk-timeout.c | |
| parent | 581d4e28d9195aa8b2231383dbabc288988d615e (diff) | |
| download | lwn-7ba1fbaa4a478f72fbaf5a56af9c82a77966b4c7.tar.gz lwn-7ba1fbaa4a478f72fbaf5a56af9c82a77966b4c7.zip | |
block: use rq complete marking in blk_abort_request()
We cannot abort a request if we raced with the timeout handler already,
or with the IO completion. So make blk_abort_request() mark the request
as complete, and only continue if we succeeded.
Found and suggested by Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/blk-timeout.c')
| -rw-r--r-- | block/blk-timeout.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/blk-timeout.c b/block/blk-timeout.c index 9b4ad138bb33..972a63f848fb 100644 --- a/block/blk-timeout.c +++ b/block/blk-timeout.c @@ -158,6 +158,8 @@ void blk_rq_timed_out_timer(unsigned long data) */ void blk_abort_request(struct request *req) { + if (blk_mark_rq_complete(req)) + return; blk_delete_timer(req); blk_rq_timed_out(req); } |